Hi Ladies... I'm about to purchase the Dianne Von Furstenberg Denise dress...so cute, black wrap style with an obi belt that has contrasting color. I have never owned a DVF before and was wondering how her stuff fits. I am a size 6 (with hips!!) and am wondering if I should stick with that size or size up. I can't try it on because I'm ordering it online. Thanks for any insight you may have.